Cognomen Yahin (Yahin 
, Яхин 
) , in the world, is quite a common surname. The last name Yahin is characteristic of Russia, where it is quite a rare surname, Kazakhstan, and Malaysia, where it is a rare surname. Not in comparison with a country's population, it is the most numerous in Russia, Philippines, and Kazakhstan. Very seldom, Yahin is the forename as well as the last name.